baber/WOPTO huggingface dataset:
Patent GB-1442664-A (GB)
Title: Process for the manufacture of sulphuric acid from aqueous solutions containing free and combined sulphur
IPC: C01B17/60
Filed: 1973-10-17
Abstract: 1442664 Sulphur dioxide and sulphuric acid DAVY POWERGAS GmbH 17 Oct 1973 [19 Oct 1972] 48366/73 Heading C1A Sulphuric acid is made from aqueous solutions containing ammonium thiocyanate, ammonium thiosulphate, sulphur and free ammonia, by admixing with the aqeuous solution an amount of sulphuric acid which is at least sufficient for reaction with the free ammonia and any ammonia combined with weak acids, and preferably also equivalent to the solution's content of free ammonia and ammonia bound as ammonium polysulphide and ammonium sulphide, the resulting mixture is concentrated by evaporation to a water content of from 40 to 78% by weight, especially 60 to 75% by weight, by direct heat exchange with hot combustion gas, the concentrated mixture burnt at 800‹ to 1200‹ C. using a fuel containing carbon, hydrogen and/or sulphur together with air or oxygenenriched air to form a sulphur dioxide containing gas and the combustion gas, after being used in the evaporative concentration step, is worked up to form sulphuric acid by contact oxidation. Weak acids are defined as those whose dissociation constant at room temperature is less than 1 Î 10<SP>-2</SP>. The aqueous solution may be a wash liquor formed in the desulphurization by means of ammonia, of coke-oven gas. An oxygen concentration of 1 to 5 vol. per cent may be maintained in the combustion gas at the outlet of the combustion chamber by regulation of the air for the combustion. Preferably, sulphuric acid and water are condensed from the combustion gas used for the evaporation by cooling and washing and at least part of the condensed sulphuric acid is added to the aqueous solution. Direct contact between the aqueous solution admixed with acid and the hot combustion gas in the evaporative concentration step may be carried out with a jet scrubber.
Patent GB-1076398-A (GB)
Title: Photographic  camera
IPC: G03B15/04
Filed: 1964-11-27
Abstract: 1,076,398. Camera with built-in flashlight. AGFA A. G. Nov. 27, 1964 [Nov. 29, 1963; April 18, 1964], No. 48394/64. Heading G2A. A camera with a built-in flashlight (Fig. 2) contains a reflector (3) moved in and out of the camera from a working to an idle position and vice versa, by co-operation of a partially projecting rotary element 6 and a corresponding surface 5 of the reflector e.g. by a rack and pinion (as shown), or a friction wheel and surface. As shown, the reflector is moved upwards by a pinion 6 until it reaches the working position when an arm 12b of a pivoted spring-held catch lever 12 slides over an oblique portion 16c of a surface 16, thus holding the reflector in position and also moving arm 13; a flash bulb 8, which may be loosely resting on a spring contact 9 is inserted and is held by arm 13 which penetrates the constriction in the cap 8a, Fig. 3 (not shown); the bulb is ejected by turning pinion 6 a short distance to release arm 13. In a further embodiment the catch lever 12 is also used to maintain the rotary element 6 and surface 5 in contact. Fig. 7 (not shown).
Patent GB-1456532-A (GB)
Title: Vending machine
IPC: G07F5/24
Filed: 1974-01-16
Abstract: 1456532 Coin freed vending machine NIPPON COINCO CO Ltd 16 Jan 1974 [17 Jan 1973 13 Feb 1973 24 July 1973 (2) 27 July 1973 22 Aug 1973 (2) 23 Aug 1973] 48618/74 Divided out of 1456531 Heading G4V The disclosure is identical to the disclosure of mechanical details in the parent Specification 1,456,531. The claims relate to the mechanism for directing inserted coins of different denominations, falling under gravity, along different paths according to differing circumstances.
Patent GB-1015740-A (GB)
Title: Gyratory crushers
Inventor: HAWARD DENIS EDWARD PETER
IPC: B02C2/00
Filed: 1964-11-30
Abstract: 1,015,740. Gyratory crushers. D.E. P. HAYWARD (NORDBERG MANUFACTURING CO.). Nov. 30, 1964, No. 48622/64. Heading B2A. [Also in Division F2] In a gyratory crusher, the mantle 17 is retained on the crushing head 14 by means of a thrust ring 30, Fig. 2, surrounding a portion of a thrust nut 25. A space 30a is provided between the ring and nut. Preferably, the ring is of manganese steel or high carbon chrome. In a modification, Fig. 3, the thrust ring 50 wholly surrounds the axial extent of the nut, the space 52 between the ring and nut being filled with a material, e.g. zinc or a synthetic plastic, while in the liquid state. The nut has lugs 55 engaging grooves or cavities 56 in the ring so that the nut and ring will rotate together and the ring has lugs 63 which fit into a socket 64 in the mantle so that the ring and mantle will rotate together when the mantle is free.
Patent GB-1202585-A (GB)
Title: Production of n-substituted n-nitroso-hydroxylamines
IPC: C07C243/04
Filed: 1967-10-26
Abstract: 1,202,585. N - substituted N - nitrosohydroxylamines. BADISCHE ANILIN- & SODAFABRIK A.G. 26 Oct., 1967 [27 Oct., 1966], No. 48736/67. Heading C2C. In a process for the production of an N- substituted N - nitrosohydroxylamine a reactant RH which is an aliphatic, cycloaliphatic or araliphatic hydrocarbon which may be substituted by halogen or in which a non- terminal CH 2  group may be replaced by oxygen provided that the reactant RH contains at least one hydrogen atom connected directly to an aliphatic carbon atom is reacted with nitric oxide in the presence of light having a wavelength of from 250 to 600 millimicrons and hydrogen chloride at a pressure of up to 2 atmospheres absolute. The process may be carried out continuously and the product isolated as an alkali metal or ammonium salt. In examples the sodium salts of N-nitroso-N. cyclohexyl - hydroxylamine and of N - nitroso - N - cyclo - dodecylhydroxylamine are obtained as products mercury vapour lamps being used as light sources. The process may be carried out in the presence of a substance which absorbs light of the above wavelength and has a dehydrogenating effect on CH bonds under the action of the light used.
Patent GB-1100747-A (GB)
Title: Method of manufacturing pump and hydraulic motor components
IPC: F01B3/00
Filed: 1965-11-17
Abstract: 1,100,747. Making reciprocating pumps and motors. SOCIETE DES AUTOMOBILES SIMCA. 17 Nov., 1965 [24 Nov., 1964], No. 48858/65. Heading B3A. The cylinder block 1 and valve plate 4 of a hydraulic reciprocating pump or motor are made by sintering metal powders in dies and subsequently honing the mating surfaces 5, 6 respectively. The surface 7 of the valve plate may also be honed. The cylinder block is made from bronze powder and the valve plate from steel powder which is cemented after sintering.
Patent GB-981314-A (GB)
Title: Improvements in or relating to convector plates
IPC: C21D9/673
Filed: 1962-12-28
Abstract: 981,314. Convector plates for annealing furnaces. VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE A.G. Dec. 28, 1962 [Jan. 9, 1962], No. 48865/62. Heading F4B. A convector plate for use between coils in an annealing furnace in which protective gas is circulated comprises an annular disc 1 with hollow, radial ribs 2 welded to both sides and tapering towards the centre, the ribs being open at both ends for the circulation of the gas therethrough. A central web 4 extends inwardly of the outer end of each rib for a substantial distance, Fig. 3 (not shown). The sum of the supporting surfaces of the ribs should amount to at least 40% of the disc area.
Patent GB-1269059-A (GB)
Title: Method of and apparatus for the preparation of land for facilitating the mechanical harvesting of root crops
Inventor: DAY JOHN OWEN
IPC: A01B43/00
Filed: 1968-10-17
Abstract: 1,269,059. Preparing land for root crops. J. O. DAY. 14 Oct., 1969 [17 Oct., 1968], No. 49244/68. Heading A1B. Soil is lifted by a share 21 onto a conveyor 22 and is deposited on a moving elevator conveyor 23 which carries it via conveyor 24 to a sifting grid 26. The more bulky material is carried by conveyor 29 to a crushing apparatus 13 from which the crushed material is returned directly to the ground, thus facilitating the harvesting of root crops. The conveyors generally are of the open slatted type allowing sifting of finer material before it reaches the crushing apparatus. The wheeled trailer 12 is articulated to a tractor 11 and bears the crushing apparatus which is driven by a hydraulic motor 17 supplied from a self-contained power-pack 18 mounted on the tractor. The various conveyors may be driven from the power-pack 18 or from the tractor power-unit.
Patent GB-1549115-A (GB)
Title: Process for recovering an alkylarylketone
IPC: C07C45/81
Filed: 1977-11-28
Abstract: A process for recovering a dialkylarylketone from an oily mixture containing largely a 1,1-diaryl-2-nitroethylene as contaminant which comprises heating the oily mixture to a temperature of at least about 140 DEG  C. and then recovering solid dialkylarylketone from a solvent solution of the 1,1-diaryl-2-nitroethylene.
Patent GB-1165687-A (GB)
Title: Methods and apparatus for Pumping a Laser
IPC: H05B41/34
Filed: 1966-11-04
Abstract: 1,165,687. Discharge lamp arrangements. FORD MOTOR CO. Ltd. 4 Nov., 1966 [20 Dec., 1965], No. 49448/66. Heading H2H. A laser is pumped by means of a gaseous discharge tube which is energized from an A.C. source through one or more controlled rectifiers. One or more pulses may be passed from any given wave or pulses may be derived in succession from different phases of a multi-phase supply either for a single cycle of operation or a succession of cycles. The discharge tube may be triggered by a high voltage pulse. A typical pulse amplitude is given as 1500A at 440V with a duration of 8 1/3 m.sec. The pulse frequency may be 80 per minute. The laser may be used for welding.
Patent GB-1329370-A (GB)
Title: Actuating device for electric switches
IPC: H01H13/26
Filed: 1971-10-26
Abstract: 1329370 Retractive switches; hand actuating devices for switches INTERNATIONAL BUSINESS MACHINES CORP 26 Oct 1971 [4 Jan 1971] 49620/71 Heading H1N An actuating device for electric switches comprises a unitary body including a base 3 and actuating assembly 5 having an elongated actuating member 13 and means responsive to pressure applied at one end 23 to translate said member relative to the base 3 along a defined path from its normal position (shown) to an actuating position (Fig. 2b, not shown) and to restore it on removal of the pressure, said means comprising either two cantilevers 15, 17 coupled to the member 13 by integral hinge members 19, 21 (Fig. la) or a resilient cylinder 47 slotted at 49 with a circular conical diaphragm (51, Fig. 1c, not shown) connecting its base to the member 13, the hinge members 19, 21 or conical diaphragm (51) forming an acute angle with the cantilevers 15, 17 or side walls of cylinder 47, respectively. The length of hinges 19, 21 or radius of the conical diaphragm is greater than the operative travel of the member 13 to ensure retraction. The unitary body is preferably of thermoplastic material such as polypropylene, nylon, polyethylene, polyphenylene oxide or mouldable polyurethane, and may contain a filler such as antimony oxide. A separate keytop 1 has a portion 11 for engaging the end 23 of member 13 and has a hollow cavity (45, Fig. 2c, not shown) which produces an acoustic snap when brought into sharp contact with base 3. The actuating device is used to distend (for example) an elastic diaphragm switch having deformable conductive layers (25 and 29, Fig. 2a, not shown).
Patent GB-1092527-A (GB)
Title: Improvements in pressure sensitive transducers
Inventor: EDWARDS HARRISON FERDINAND
IPC: G01L9/00
Filed: 1964-12-08
Abstract: 1,092,527. Measuring temperature and pressure electrically. SIMMONDS PRECISION PRODUCTS Inc. Dec. 8, 1964, No.49824/64. Heading G1N. Relates to capacitive transducers which are variable in response to fluid pressure. In Fig. 1 a differential pressure responsive transducer in the form of a manometer, comprises a metallic casing 20 containing a first pair of insulating sleeves 25 having a conductive layer 25' therebetween, and a second pair of insulating sleeves 24 with a conductive layer 24', the conductive layers forming capacitor electrodes and having terminals 21, 22. A mercury column 33 occupies an annular space 32 between the said pairs and is linked by a passage 29 to a mercury reservoir 28. High and low pressure from a differential pressure source such as a fluid flow channel orifice, is communicated through conduits 26, 27. Any change in pressure difference results in a corresponding change in the height of mercury column in the space 32 and thus a corresponding change in the capacitance between the conductive layers. The variable capacitor transducer may be connected in one arm of a bridge circuit, Fig. 3 (not shown) and unbalance caused by variation thereof is nulled by adjustment of a capacitor in another arm of the bridge, e.g. by means of a servomotor.
Patent GB-1169723-A (GB)
Title: Form for Cementitious Material
IPC: E04B2/86
Filed: 1966-11-07
Abstract: 1,169,723. Apertured permanent formwork blocks. ROHER-BOHM Ltd. 7 Nov., 1966 [22 March, 1966; 21 Sept., 1966], No. 49836/66. Heading E1B. Apertured building blocks 10 which are bonded together by, e.g. a rubber-based adhesive to act as permanent formwork for a concrete wall are made of a foamed plastics material, e.g. expanded polystyrene, and comprise flat front and back walls 11, and transverse webs, e.g. 13. Interior and exterior facing sheets 26 and 27 of, e.g., gypsum wall board and impregnated fibre board may be provided, which are spaced in from two adjacent edges of the respective wall, and overlap the other two edges. Horizontal reinforcement may be laid in recesses 16 in the transverse webs, and vertical reinforcement is placed between the webs. A special corner block, (Fig. 2, not shown) has two intermediate webs which are not perpendicular to the front and back walls. Alternative embodiments are illustrated in Figs. 5, 5a and 5b (not shown) in which the apertures are rounded to varying extents, and both the front and back walls, and the transverse webs thicken towards the bottom of the block.
Patent GB-1465597-A (GB)
Title: Hydrolysis of oat husks
IPC: C07C27/00
Filed: 1974-11-18
Abstract: 1465597 Obtaining xylose xylitol from oat husks SUD-CHEMIE AG 18 Nov 1974 [23 Nov 1973] 49879/74 Heading C2S [Also in Division D2] Xylose solutions and cellulosic residues are obtained from oat husks by hydrolysis using an alkali metal hydroxide or an alkali metal chlorite and then treating the residue obtained in a second hydrolysis step using a mineral acid to give a solid residue and a xylose solution. Optionally the additional step of distilling acetic acid from the solution remaining after the first step and separating acetic acid from the distillate by solvent extraction may be included. Following the second step the liquid remaining may be neutralized and xylose may then be separated or reduced in the solution directly to xylitol. The solid residue remaining after the second step may be extracted with an organic solvent to remove lignin and the resultant solid residue may be converted to cellulose, e.g. by treatment with an alkaline solution.
Patent GB-1030766-A (GB)
Title: Rotary disc valves
IPC: F16K3/08
Filed: 1964-12-09
Abstract: 1,030,766. Valves. R. S. WILLIS. Dec. 9, 1964, No. 50037/64. Heading F2V. A flow control valve comprises a body 6, Fig. 1, having a longitudinally extending opening 7, an inlet 2 leading to the opening and an outlet 3 leading from the opening, a pair of relatively rotatable disc carriers 15 disposed in the opening between the inlet and outlet, a disc 19 carried by each of the disc carriers with the respective discs disposed in contiguous relation, means 26 extending into the body for rotating one of the disc carriers relative to the other, each of the disc carriers comprising a body transversely spanning the opening and having an axially extended outer marginal skirt 18 forming a seat for its disc, the discs and disc carriers having openings 17 and 20 therethrough movable into and out of alignment to control the flow from inlet to outlet. Seals 21 are provided for the disc carriers, one of which is held against rotation by a pin 27b welded to the body while the other has recesses engaged by a rotatable forked member 26 connected by a sealed spindle 28 to a calibrated actuator 34. Fig. 5 shows an alternative construction in which the apertured discs 125, 129 are of ceramic material or tungsten carbide to resist erosion, the downstream disc having a chamber 128 to reduce fluid velocity erosion effect and the upstream disc an actuator 139 with a notch 142 co-operating with graduations 143.
Patent GB-503295-A (GB)
Abstract: 503,295. Ticket - issuing machines. BLACK, H. D. (Scher, L.) July 1, 1938, No. 19496. [Class 106 (iii)] In a key or like selecting member operated ticket issuing machine, a number of tickets are issued in a single cycle of operation of the machine through the intermediary of a member 56 movable by spring - or weight - controlled means on actuation of a key through a distance dependent on the key actuated, and subsequently restored in a continuous movement to its initial position. The member 56 bears rack teeth which operate a pinion connected to the ticket feeding roller 62 by a ratchet drive so that reciprocation of member 56 causes a number of tickets to be issued proportional to its length of travel. Any of the keys 73. 74, 75, 76 and 77 when depressed actuate a key 40 through a lever 69. The key 40 operates the starting switch of a motor driving a pinion 19 and also intermeshes gears so that the shaft 34 is driven from the pinion 19. Shaft 34 carries eccentrics operating rods 48 and 91 and also operates the lever 47 through a cam. When a particular key is depressed the member 56 is freed to rock clockwise until its head 58b makes contact with the key depressed. The motor is then operating and returns the member 56 through rod 48 thus operating roll 62 to issue the tickets. Rod 91 then operates a lever unit 85 and 87 carrying a knife 83 to sever the tickets. The arm 47 is operated by a cam on shaft 34 to engage with stops 66 on the shaft of the ticket roll to prevent overrunning thereof. A register may be driven from the shaft of the ticket roll. Unauthorized operation of the machine may be prevented by a bell-crank lever 95 which can be operated to lock lever 69 in its raised position.
Patent GB-996510-A (GB)
Title: Twin grip for suitcases or the like
IPC: A45C13/26
Filed: 1963-12-20
Abstract: 996,510. Suitcase handles. H. ERHARD. Dec. 20, 1963, No. 50535/63. Heading A4G. A twin or double suitcase handle comprises two members engageable to form a carrying handle in which the mating surfaces of the members are equipped with fastening elements disposed at the outer corners of the surfaces beyond the median gripping area and the handles pivot at the same points. The elements may be interlocking longitudinal grooves and projections, surface flush magnets or a projecting magnet contacting a recessed magnet. Specification 946,982 is referred to.
Patent GB-1247048-A (GB)
Title: Controlled flow drain
Inventor: BLENDERMANN LOUIS
IPC: E04D13/04
Filed: 1968-10-25
Abstract: 1,247,048. Roof drainage. JOSAM MFG. CO. 25 Oct., 1968, No. 50740/68. Heading E1C. A drain for use on a flat roof has an outer dome A and an inner, domed structure S which is open at the top, and has adjustable openings in its peripheral wall to control the flow rate therethrough. The domed structure may be formed (as shown) by tapering wall portions 84 integral with an annular base plate 11 fixed to the bowl 10, the wall portions co-operating with depending tapered wall portions 85 integral with an annular top plate 85a, which is rotatable into a number of different positions where it is fixed by screwing through an annular slot (Fig. 18, not shown). The domed structure may alternatively comprise four arcuate, centrally pivoted wall portions which may or may not be linked to move in synchronism (Figs. 1-5, 6, not shown) four wall portions each made up of two arcuate sections slidable one over the other, (Fig. 8, not shown), eight straight or arcuate pivotally mounted wall portions (Figs. 7, 11 not shown), two concentric slotted sleeves of which the inner is rotatable (Fig. 9, not shown) four fixed wall portions carrying two or four flexible flaps (Figs. 12-14, not shown) or a perforated bellows arrangement fixed to a slotted upper ring (Fig. 15, not shown).
Patent GB-1184430-A (GB)
Title: Compressed-Air Brake Apparatus for Motor Vehicles
IPC: B60T17/00
Filed: 1967-11-08
Abstract: 1,184,430. Brake disposition. DAIMLERBENZ A.G. 8 Nov., 1967 [11 Nov., 1966], No. 50763/67. Heading B7H. In a pneumatic braking system on a commercial motor vehicle wherein the apparatus comprises a pressure regulator, an antifreeze device, a brake valve and a compressed air reservoir, two or more of these components are mounted together, for accessibility, on a support attached to the vehicle frame. The support may comprise a pair of hollow or dished holding members 3 secured to the vehicle frame 1 and to which are attached brackets 4 upon which are mounted compressed air reservoirs 5 and 6 secured by straps 7. The support also carries a pressure regulator 9, anti-freeze device 10, dual circuit brake valve 11 and dual circuit safety valve 12. Overflow or relief valves 15 are disposed on the reservoir 6. The space between the members 3 is closed at the top by a removable plate 13 secured by wing nuts.
Patent GB-1217549-A (GB)
Title: Histidine-containing peptides and process for preparing them
IPC: C07K1/06
Filed: 1968-10-28
Abstract: 1,217,549. Histidine derivatives. FARBWERKE HOECHST A.G. 28 Oct., 1968 [26 Oct., 1967], No. 51073/68. Heading C2C. A process for protecting the imino group of histidine or a derivative thereof comprises reacting an acyl-histidine or histidine-containing acyl-peptide in absolute pyridine with a compound I in which R is trifluoroalkyl, alkyl or aryl and Ac is an acyl group. N<SP>α</SP> - CBO - N<SP>im</SP> - (2,2,2 - trifluoro - 1 - t - butyloxycarbonyl - amino ethyl) - bis - OH, BOC- val - N<SP>im</SP> - (2,2,2 - trifluoro - 1 - t - butyloxycarbonyl - aminoethyl) - bis - OMe, BOC - N<SP>im</SP> (2,2,2 - trifluoro - 1 - t - butyloxycarbonylaminoethyl) - bis - OMe, CBO - N<SP>im</SP> - (2,2,2 - trifluoro - 1 - t - butyloxy - carbonyl - aminoethyl)- bis - leu - OtBu, BOC - val - N<SP>im</SP> - (2,2,2 - trifluoro - 1 - t - butyloxycarbonyl - aminoethyl)- bis - leu - OtBu, BOC - val - N<SP>im</SP> (2,2,2 - trifluoro - 1 - t - butyloxycarbonyl - aminoethyl)- bis - OH and BOC - val - N<SP>im</SP> - (2,2,2 - trifluoro- 1 - t - butyloxycarbonyl - aminoethyl) - bis - leu- OtBu are claimed per se. Intermediates isolated are 2,2,2-trifluoro-1- hydroxy-N-t-butyloxycaronylethylamine, BOC- val - bis - OMe, 2,2,2 - tri -fluoro - 1 - acetoxy-N- t - butyloxycarbonyl - ethylamine, 2,2,2 - trifluoro- 1 - benzoyloxy - N - t - butyloxycarbonyl - ethylamine, p - methoxybenzyloxycarbonylamine, 2,2,2 - trifluoro - 1 - hydroxy - N - p -  methoxybenzyloxy - carbonylethylamine, and 2,2,2 - trifluoro - 1 - trifluoroacetoxy - N - benzyloxycarbonyl-ethylamine. H-val-bis-leu-OH is prepared by splitting off the N<SP>im</SP> protecting group.